[Plugin eshop] Stock Quanity Not Reducing

I have everything set up correctly in my system, but my customers are buying items and the stock is not reducing, even after the order is process and it is shipped.

I’m using Paypal as the merchant. Under Settings > eShop > General I have set as follows:

Add product details.. YES
Class… nothing added
Show… nothing added
Option Hide… nothing added
Out of Stock message… Out of Stock
Symbol… $
Use an image… IMAGE
Add to cart w/o going to cart… NO
Add Text… nothing added
Placement… BEFORE

In my post I have 1 product option and 1 item in stock. I have checked the box “Stock Available”.

Someone has purchased this item, but it is still showing stock at 1 and other people are able to add to the cart. It is obviously not decreasing or showing that the item is now out of stock. If it were something with my theme, then I would assume that even in the post or in the eShop > Products the stock would have been changed to 1.

Actually in the product table, it is showing that 0 purchases have been made of the item, though it was indeed processed and money is in the paypal account.

Any help would be soo appreciated!